Just a thought:
I respell a note enharmonically with alt- and alt=. In dense chordal music, I find it cumbersome to, say, ctrl-click eight f’s to turn them into e#'s. Couldn’t I just mark the first, add an extra key (ex. ctrl) and thereby change all the subsequent in that bar, maybe even in several instruments? Or, in a more popover-like manner, mark an area of music and respell all representations of a certain note therein?